S
M
T
W
T
F
S
27
63°
57°
28
64°
57°
29
70°
56°
30
76°
53°
1
87°
60°
2
88°
60°
3
73°
62°
4
77°
58°
5
73°
61°
6
83°
63°
7
66°
58°
8
67°
55°
9
75°
54°
10
86°
61°
11
79°
64°
12
96°
64°
13
78°
60°
14
63°
57°
15
62°
51°
16
70°
55°
17
71°
57°
18
73°
56°
19
75°
59°
20
76°
59°
21
77°
62°
22
76°
64°
23
77°
64°
24
81°
64°
25
92°
68°
26
75°
62°
27
73°
60°
28
75°
60°
29
74°
55°
30
75°
61°
31
82°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sydney
Sydney's October 2026 forecast shows daily high temperatures ranging from 75° to 82°, with overnight lows between 61° and 66°. The average high for October is 79° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Sydney. See also: November | December | January.